WMOD00286 ‎(2)‎

• Title: Final Report for the Utah/NOAA Snowpack Chemistry Program
• Date: 9/1/1983
• State: UT
• Weather Modification - Doc Type: Report

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4

SAMPLING

In order to obtain physical evidence on the distribu-
tion of silver and indium in the snowpack three snow
sampling expeditions were conducted during the experimental
field season.

vertical snow profiles were collected at between 2 to
18 sampling sites during each trip. Each profile was
divided into 4 cm increments so that silver, indium and
water content could be measured with depth. Tables I and II
summarize the details of the sampling at the sites. Figures
1 and 2 indicate the locations of the sites.

Two snow sampling sites were established on the first
sampling trip, February 5 through 10, 1983. On February 6,
1983 a total of 42 samples were collected from sites
UTA-~rimmy Reed Flat and UTB-Kents Lake. These samples cover
snowfall from storms 1-7 (see Table III). This expedition
was intended to establish an additional seven new sampling
sites in the target area. Helicopter flight was made
impossible, however, by high wind velocities and low visibi-
lity associated with approaching storm No.8. The samp1in9
crew remained in Beaver, Utah for two more days, but con-
ditions did not improve and were not forecast to improve so
continued sampling was not possible. At this time it was
decided to wait for improved weather conditions before
attempting another trip.

The second sampling trip was conducted February 16
through 18, 1983, when weather conditions, acceptable for
sampling work, were forecast. A total of 152 samples were